North Africa vs Africa

North Africa and Africa both are nouns.

Word	Noun	Adjective	Verb	Adverb
North Africa	Yes	No	No	No
Africa	Yes	No	No	No

North Africa (noun)	Africa (noun)
an area of northern Africa between the Sahara and the Mediterranean Sea	the second largest continent; located to the south of Europe and bordered to the west by the South Atlantic and to the east by the Indian Ocean